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About this home
Builders & Developers! Middle Housing Infill Options are available on this Lot. R10, 0.53-acre (23,086 sf) site in SW Portland, under 3/4 mile from Lake Oswego, with frontage on SW Stephenson St and SW Boones Ferry Rd. Seller’s 8-Home concept: Two detached Homes on Stephenson plus Two Triplexes, every home with its own GARAGE and on-site parking, very rare in today’s infill. Beginning Jan. 1, 2027, Oregon’s HB 2138 requires cities to allow attached (duplex, 3plex and-or 4plex) or detached Home configurations; Portland’s code update to implement it is in process. This site can use the Cottage Cluster code allowing up to 16 homes on this site & up to (18 with bonus units under the City’s draft), HB 2138 adds attached groupings of up to four. NO FAR limits apply. Lots can be created using an expedited Middle Housing Land Division. All Utilities available. Gentle slope, territorial views, daylight-basement potential. Site plans, utility layout, soil test and engineering available. Seller is a licensed Oregon Realtor. Buyer to verify zoning, density and all development information with the City.
Arnold Creek, located between Tryon Creek State Natural Area and the Tualatin River corridor, is a wooded and residential Portland neighborhood with steep ravines and winding lanes. The neighborhood’s character concentrates around the Arnold Creek Trailhead area, where gravel paths, birdsong, and trail traffic set the daily rhythm. Homes lean toward mid-century and late-20th-century builds tucked into firs and big-leaf maples, with decks and picture windows oriented to the canopy. The terrain shapes a quiet, outdoors-forward lifestyle, with pocket views and frequent creek crossings. Nearby pillars include Lake Theater & Cafe for a low-key night out, Grand Central Bakery for a ritual stop, and Live Wire Radio for a dose of local culture.
Provided by Walk Score and Local Logic
Property details
Exterior
Exterior features
Gentle-sloping terrain
Territorial views
Road frontage
Paved road surface
Soil test available
Home design
Land
Manufactured homes allowed
Utilities
Cable available
Electricity available
Natural gas available
Public sewer
Water available
Sale and tax history for 840 SW Stephenson St
Sale History
Tax History
Date
Event
Price
RMLS #794853959
Oct 18, 2026
Listed
$579,000
Public Records
Jun 4, 2021
Sold
$175,000
Year
Property tax
Land + Additions
Assessment*
2025
$2,378 (+3.7%)
2024
$2,293 (+4.0%)
2023
$2,205 (+2.2%)
2022
$2,157 (+1.7%)
2021
$2,121 (+9.0%)
2020
$1,946 (+3.8%)
2019
$1,874 (+3.0%)
2018
$1,819 (+4.3%)
2017
$1,743 (+9.3%)
2016
$1,595 (+2.7%)
2015
$1,553 (+1.5%)
2014
$1,530 (+2.4%)
2013
$1,495 (+10.5%)
2012
$1,352
Public record
Public record
Zoning
Permits
Beds
—
Baths
—
Stories
—
Lot width
—
Lot depth
—
Lot size
0.53 Acres
Year renovated
—
Finished Sq. Ft.
—
Unfinished Sq. Ft.
—
Total Sq. Ft.
—
Year built
—
Style
Vacant Land
County
Multnomah County
APN
R331611
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 5, 2026.
R10
Residential 10,000 Zone
The single-dwelling zones are intended to preserve land for housing and to provide housing opportunities for individual households. The zones implement the comprehensive plan policies and designations for single-dwelling housing and provide options for infill housing that is compatible with the scale of the single-dwelling neighborhood.
Permitted uses
Include but are not limited to:
Housing
Sep 2, 2022 • Final
Early assistance
Addition
Apr 2, 2021 • Final
Early assistance
New construction
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
2/10 Heat Factor
7 days above 92° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
9/10 Air Factor
14 unhealthy days expected this year, 15 days in 30 years
Provided by First Street
Historical weather
Portland, OR • 97219
Average low and high temperatures (°F)
47
37
49
38
56
43
64
45
70
50
77
54
83
58
84
62
76
58
61
49
52
44
50
42
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
93/ 100
Exceptional sunlight
Sunscore
This home ranks in the top 4% for direct sun exposure in Portland. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
10.3 hrs
5.2 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 840 SW Stephenson St
We cannot show automated home-value estimates for this home.
Nearby homes have recently sold between $450,000 and $1,005,000.
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $450K to $1.0M.